The center of the clasp is not tight on the shank or the shank of the earring. If it were a little smaller, narrower, then they would fit snugly and not fall off the stud of the earrings. Not particularly happy with their party but trying to find a solution. Whether they are variable or the same, I have used them and feel that they are non-refundable. That's it. The score for 2 is good, not if the hole sizes in the muff or stem as I call it were smaller for smaller earrings then the benefit would be phenomenal.
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